Inthelast20years,seaice intheArcticbecauseofglo... 国语站 题库 2.89W 大中小设置文字大小 问题详情:In the last 20 years, sea ice in the Arctic because of global warming. A. had decreasedB. decreased C. has been decreasingD. is decreasing【回答】C知识点:动词时态与语态题型:选择题 TAG标签:#